/*
 * Copyright 2018 Confluent Inc.
 *
 * Licensed under the Confluent Community License (the "License"); you may not use
 * this file except in compliance with the License.  You may obtain a copy of the
 * License at
 *
 * http://www.confluent.io/confluent-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 */

package io.confluent.connect.jdbc.util;

import java.util.LinkedHashMap;
import java.util.Map;

@SuppressWarnings("serial")
public class LruCache<K, V> extends LinkedHashMap<K, V> {

  private final int maxEntries;

  public LruCache(int maxEntries) {
    super(16, 0.75f, true);
    this.maxEntries = maxEntries;
  }

  @Override
  protected boolean removeEldestEntry(Map.Entry<K, V> entry) {
    return size() > maxEntries;
  }
}
